baber/WOPTO huggingface dataset:
Patent GB-1200754-A (GB)
Title: Improvements in or relating to crucible melting furnaces
IPC: F27B14/14
Filed: 1967-08-01
Abstract: 1,200,754. Crucible furnaces. SKODA OBOROVY PODNIK. 1 Aug., 1967 [12 Aug., 1966], No. 35300/67. Heading F4B. A fluid fuel fired crucible furnace 2 comprises a partition 4 formed with an aperture 7 and disposed horizontally between the crucible 1 and the furnace lining 3 to form chambers 5 and 6, and a vertical partition shown in dotted lines. A main burner 9 is disposed in chamber 5 and an auxiliary burner 10 in chamber 6. More than one burner may be used in either chamber and the main burner(s) may be in chamber 6 with the flue 11 leading from chamber 5. More than one partition 4, each with aperture 7, may be used.
Patent GB-929661-A (GB)
Title: Multi-ratio gear transmissions
Inventor: COAST GEOFFREY
IPC: F16H1/22
Filed: 1958-11-04
Abstract: 929,661. Change-speed control. D. NAPIER & SON Ltd. Oct. 30, 1959 [Nov. 4, 1958], No. 35436/58. Class 80 (2). A gear transmission between input and output shafts 10, 12 comprises two identical parallel three-speed spur units 19, 20, 21 and 19<SP>1</SP>, 20<SP>1</SP>, 211 giving six speeds in geometrical progression, synchronizing gear between the shafts 14, 14<SP>1</SP> of the spur units incorporating auxiliary gear trains 36, 37, 38 and 39, 40, 41, one of which acts as a step-up and the other as a step-down gear of the same ratio as the common ratio of the main geometric progression. Each power path includes an hydraulic coupling 16 and dog clutches 25, 26, 27 for operating the gears, and the synchronizing gear includes hydraulic couplings 37, 40. Hydraulic control system.-Any gear change involves engagement of a clutch on the opposite shaft, and the synchronizing of the unloaded shaft, engagement of the appropriate clutch, and filling and draining of the fluid coupling is effected by the hydraulic control system, Fig. 2, comprising a piston valve 57 for operating the clutch piston-and-cylinder actuator units 45- 48. Overall control is exercised by four ganged rotary valves 51-54 constituting selector gate and lock, synchronizing coupling gear, gear change operator, and clutch selector, respectively, for the sequential operation of a main coupling selector valve 55, gear change valve 57, interlock valves 58, 59, synchronizing and selection valve 60, clutch engaging valves 61, 62, back pressure valves 63, 64 and clutch position valves 65, 66. Valves 61, 62 are also arranged to control the supply of liquid to synchronizing couplings 37, 40. Connections are made from clutch selector valve 54 to actuators 45-48 through pressure lines 141- 146. Operation.-In the arrangement according to Fig. 3, gear selection is effected by a manual lever 70 on the selector gate 51, provision being made for preventing over- or under-speeding of the engine. If in any selected gear the engine speed is such that changing to a lower gear would cause overspeeding, a piston valve 212 is operated to supply pressure liquid to the right-hand end of a cylinder 208 so that an anvil 206 causes the left-hand tooth 203 of a double pawl 20 to engage a slot 205 in the periphery of selector 51, thereby preventing counter-clockwise movement of lever 70 but permitting clockwise movement. The second pawl tooth 204 is effective to prevent underspeeding. Fig. 4 shows a fully automatic gear change system in which a speed-governor operated servo-valve 244 operates a piston and rod 242, 240 connected to an arm 231 for operation of an over/under speed pawl 230 and rotation of selector 51, the latter being coupled to a cam 248 which is likewise rotated to vary the loading of the governor spring 247 and cut off the valve 244.
Patent GB-1361253-A (GB)
Title: Switch apparatus
IPC: H03K17/96
Filed: 1971-07-28
Abstract: 1361253 Touch operated switches MAGIC DOT Inc 28 July 1971 35567/71 Heading G1N A touch operated switch, Fig. 2, comprises a Darlington pair of transistors which conduct when a central pin electrode 6 and a concentric outer electrode 7 extending proud of the central electrode are manually bridged. The electrodes may be positioned in a housing 1 by an insulating ring 8 providing a chamber in which the Darlington pair may be located, the connecting leads extending through hollow stems 10 to a printed circuit board 2. In a modification in which the housing is held in a panel 13, Fig. 4, by a spring clip 11 or a nut, the central electrode 6, a current limiting resistor 16 and an amplifier 14 are located by encapulating with potting material 15. The Darlington pair may have a load resistor connected either in series with the D.C. power source or in series with the second stage transistor above, Figs. 5 and 6 (not shown). The load may comprise a lamp located in the housing 1.
Patent GB-1001444-A (GB)
Title: Percussion igniter
Inventor: SCHERMULY ALFRED JAMES
IPC: F42C7/12
Filed: 1961-10-03
Abstract: 1,001,444. Firing devices for pyrotechnic apparatus. SCHERMULY Ltd. Oct. 2, 1962 [Oct. 3, 1961], No. 35679/61. Heading F3A. A percussion operated device for firing pyrotechnic signals such as distress flares and signal rockets comprises a metal casing 1 housing a spring-stressed striker 6 and a keeper plate 15 holding the striker in the stressed position, the plate being so arranged that movement through a predetermined distance in a given direction frees the striker. Furthermore a firing lever 16 is pivotally attached to the plate near one end thereof for movement to a firing position in which the lever bears against the casing 1, in which position when pressure is applied to its free end the lever turns about the casing as fulcrum and moves the plate the predetermined distance. The striker 6 has a shoulder 10 between which and a metal sheet 2 the spring 5 is compressed, the striker together with a percussion cap 11 and the spring 5 being confined in an inner tube 4. The striker extends through a hole in the sheet 2 and the narrow end of a keyhole slot in the plate 15, when the lever 16 overlies the plate 15. The lever may be spring- stressed to the firing position and held in the safe position by a cover 19 provided with a stop 21, while a flash tube (not shown) may lead from the cap 11 to the pyrotechnic device (not shown).
Patent GB-811015-A (GB)
Title: Line-space mechanism for office typewriters
IPC: B41J19/84
Filed: 1955-12-13
Abstract: 811,015. Typewriters. OLYMPIA WERKE, A. G. Dec. 13, 1955 [April 21, 1955], No. 35776/55. Class 100(4) In a line-spacing mechanism for a typewriter in which a line-space ratchet 3 may displaced by either a hand lever 5 or by a power drive 19 through a guide slot mechanism 16, 21 and wherein a pawlcarrier 24 is automatically lockable in its terminal position by means of a latch 27 co-operating with an adjustable strip 34, a cam plate 14 provided with the guide slot 16, and a double-armed transmission lever 11, 11a used for hand line-spacing operation, are pivotally mounted on a common stub axle 12 and are operatively connected through a pin 21` mounted on a coupling rod 22 with the pawl carrier 24. The pin 21 projects through the guide slot 16 and is embraced by the lever 11a so that it, and the cam plate 14, can independently operate the rod 22 and the pawl carrier 24. Operation of the hand-lever 5 operates the double-armed lever 11 through link 9 and the connecting rod 22 moves to the right. When the pin 21 reaches the end of the guide slot, which is shaped with an upward bend, a spring biased pivoted latch 27 moves freely over the stop 34. When a power drive is initiated, the cam plate 14 shifts the pin 21 by contact with the left end of the guide slot 16 so that the latch engages behind the stop 34; only when the cam returns clockwise does the upward bend of the slot 16 release the latch 27.
Patent GB-487758-A (GB)
Title: Saws
IPC: B23D49/00
Filed: 1937-12-24
Abstract: 487,758. Sawing. STECHSCHNEIDER GES. Dec. 24, 1937, No. 35777. Convention date, Nov. 18. [Class 145 (ii)] A reciprocating saw 21 is held bv vertically slidable elements 12, 15 carried by brackets 2, 3 supported from and arranged respectively above and below the table 1 supporting the work. The work table 1 is clamped to the edges of a table 7. The motor 4 is also carried by the work table 1 and reciprocates the saw through crank and connecting rod mechanism 17, 18, operating on the lower slidable element 15. The bracket 2 may be replaced by a bridge.
Patent GB-935163-A (GB)
Title: Travelling wave tubes
IPC: H01J23/087
Filed: 1961-10-05
Abstract: 935,163. Travelling-wave tubes. CSFCOMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Oct. 5, 1961 [Oct. 14, 1960], No. 35862/61. Class 39 (1). An " O " type travelling-wave tube comprises an electron gun 22 located in a first, shorter portion of a vacuum-tight cylindrical envelope 21, a delay line 23 located in a second, longer portion of the tube envelope, and two cylindrical permanent magnets 24, 25 disposed around the two portions of the envelope with like poles adjacent (e.g. S-S or N-N) so that a magnetic field of higher intensity is produced in the first portion than that produced in the second portion. A field straightener 26 may be disposed between the magnets and the tube envelope, and soft iron pole-pieces 27, 28, 29 preferably provided with the intermediate polepiece 27 having an enlarged portion 31 near the tube envelope which, with an apertured iron disc 30 lying between the gun and the delay line, ensures a distinct boundary to the magnetic field in the vicinity of the field inversion. Centring screws 32 may be provided to align the tube within the magnet structure.
Patent GB-349582-A (GB)
Title: Improvements in suspensions for automobiles and the like
IPC: B60G11/32
Filed: 1929-11-25
Abstract: 349,582. Vehicle suspension systems. CARWARDINE, G., 17, Macaulay, Bath. Nov. 25, 1929, Nos. 35994 and 16094. [Classes 108 (ii) and 108 (iii).] Auxiliary suspension devices or resilient linkages are interposed between the ordinary springs and the e frame of a vehicle and possess such characteristics that the combined suspension system gives a relation between the load (y) and the deflection (x) represented substantially by the equation y=e<ax>. A variety of constructions are shown of which the following are examples. The frame 1, Fig. 3, and the end of the main spring 2 are separated by two pivoted elements 3, 3a which roll on one another and are controlled by the tension spring 4. The rolling surfaces are designed to give the necessary effect. Arcs of circles eccentric to the pivots 3d, 3e may be used. In the construction shown in Fig. 8, links 4e, 4f hinged to one another connect the frame 1 and spring 2. The link 4f carries a roller 4g which bears against a shaped arm 4d pivoted to the link 4e and forced towards the roller by a compression spring 4h. A two-armed lever 7, Fig. 11, is pivoted to a bracket 7a fixed to the frame 1, a roller 7b on the longer arm being adapted to bear on the spring 2. A tension spring 7c acts on the shorter arm. In the construction shown in Fig. 15, hinged links 12, 12a connect the spring 2 and a bracket 12b extending down from the frame 1, a torsion spring being-applied between the links at the hinge 12c. Specification 263,925, [Class 108 (ii), Road vehicles, Undercarriage details &c. for], is referred to.
Patent GB-1510185-A (GB)
Title: Mounting of power steering gear
IPC: B62D3/00
Filed: 1975-09-02
Abstract: 1510185 Mounting power steering gear R H SHEPPARD 2 Sept 1975 [23 Jan 1975] 36035/75 Heading B7H A power steering unit 10 is mounted on a vehicle axle 11 by means of a bracket 30 which is fixed to the axle by a pin 41 tightly received in bores 40 and 27 in the bracket and axle, U- clamps 23 and means for preventing pivoting of the bracket about pin 41. The bracket has a mounting plate 31 with skirts 32, 33 connected to a portion 35 which houses the steering gear output shaft 16. The axle 11 has a leaf spring mounting pad 22 on which plate 31 is mounted and the leaf springs 12 abut the top surface of plate 31. Set screws 51 arranged in skirts 32, 33 prevent turning of the bracket about pin 41 which itself prevents pure lateral movement of the bracket, the clamps 23 serving merely to position the bracket. In another embodiment, Fig. 7, dowel pins 60 are used in place of the set screws to prevent rotation of the bracket. Steering input 20 may be connected to the steering shaft by an extensible and flexible coupling.
Patent GB-1192397-A (GB)
Title: Process for Continuously Heating, Drying and/or Heat-Setting Tows of Filaments or Fibres
IPC: D02G1/20
Filed: 1967-08-07
Abstract: 1,192,397. Drying filamentary material in electric fields. FARBWERKE HOECHST A.G. 7 Aug., 1967 [10 Aug., 1966], No. 36095/67. Heading F4G. A continuous process for heating, drying and/or heat setting a tow of filaments consisting of or containing a synthetic polymer comprises passing the tow in an unravelled state after leaving a crimping chamber through a high frequency electric field having a strength of at least 0.2 kilovolt/centimetre and a frequency of at least 2 megacycles/second.
Patent GB-864573-A (GB)
Title: Improvements in convertible chairs and/or tables
Inventor: BAILEY NORMAN JOHN
IPC: A47C13/00
Filed: 1958-11-12
Abstract: 864,573. Convertible seats. LEACH PRODUCTIONS Ltd., P. Oct. 30, 1959 [Nov. 12, 1958], No. 36290/58. Classes 52(2) and 52(3). An underframe which may support a chair D and/or a table C consists of inverted U-shaped end-pieces a and bearers b, the bearers being formed to co-operate with the inclined front edge d<SP>1</SP> of chair base member d to prevent the chair from tilting backwards. The table C is provided with short inclined legs c. The length of the bearers b may be varied to accommodate a number of chairs D or only one (Fig. 1, not shown). The chairs D may face in the same or opposite directions. Reference is made to a cupboard, book-shelf or paper rack, having legs c for mounting on the under-frame.
Patent GB-341637-A (GB)
Title: Improvements in boots and shoes wherein the parts are connected by cement only
IPC: A43B9/12
Filed: 1929-11-27
Abstract: 341,637. Boots &c. SCHERER, P., 122, Wilhelmsh÷herstrasse, Frankfort-on- Main, Germany. Nov. 27, 1929, No. 36339. [Class 17 (ii).] The forward foot portion a of an insole for a boot or shoe wherein the upper and inner and outer soles are cemented together is of elastic rubber and the shank and heel portion a<1> is of leather. A leather reinforcement b is attached to the underside of the insole to overlap the portions a, a<1>, and a leather reinforcement c may be attached under the toe. The inturned edge of the upper is cemented to the insole and an outersole f is also cemented in position, with a filler d of elastic rubber between the soles.
Patent GB-888630-A (GB)
Title: Production of conjugated diolefines
Inventor: WIRTH MAX MARIN
IPC: C07C1/247
Filed: 1959-10-27
Abstract: Conjugated diolefins are obtained by contacting a 1,3-dioxane in the vapour phase at elevated temperature with a catalyst containing 5%-14% by weight of phosphoric acid, calculated as P2O5, deposited on silica gel.  The dioxane may have the formula <FORM:0888630/IV (b)/1> in which R1 is a C1-C6 alkyl and R2 R3, R4, and R5 are hydrogen, lower alkyl or aryl; 4,4-dimethyl-1,3-dioxane which yields isoprene, is preferred.  The dioxane is prepared by reacting an olefin with a aldehyde in the presence of aqueous sulphuric acid.  The catalyst may have a surface area of at least 120 m2./g. and is preferably heated at 450 DEG C.-750 DEG C. and washed to remove titratable acid before use.  It is also preferred that the silica is alkali-free and the catalyst is impregnated with caustic potash or other aqueous alkali to introduce 0.4-2 mols of alkali per mol of P2O5.  The reaction may be effected at 200 DEG C.-450 DEG C. at a space velocity of 0.1-50 liquid volumes of dioxane per volume of catalyst per hour in the presence of 1-100 mols of steam per mol of dioxane.
Patent GB-1090531-A (GB)
Title: Improvements in or relating to copy papers
Inventor: STRAUSS EUGEN
IPC: B41M5/10
Filed: 1963-09-18
Abstract: The copy papers of the parent specification are adapted for use with data-processing machines that have magnetic or electric sensing heads by the incorporation in the donor layer of a magnetic or magnetizable material, e.g. magnetic iron oxide.  The inorganic filler may then be omitted.  The donor layer may also contain a material that softens the layer without dissolving it, e.g. castor oil or ricinoleic acid.
Patent GB-1194258-A (GB)
Title: Improvements in or relating to Disc Brakes.
IPC: F16D65/092
Filed: 1967-08-11
Abstract: 1,194,258. Spot type disc brakes. ALFRED TEVES G.m.b.H. 11 Aug., 1967 [6 Oct., 1966], No. 36930/67. Heading F2E. A spot type disc brake has an intermediate plate 6 (Figs. 1 and 2) interposed between a piston 2 of a fluid pressure motor and a friction lining carrier 5. The plate 6 has an elongated embossed portion 7 facing the piston for engagement therewith. This arrangement is said to reduce brake squeal. The plate in Fig. 2 is shown to a different scale to Fig. 1 and the major dimension of the embossed portion is greater than the diameter of the piston, and extends parallel to the horizontal axial plane of the piston being offset radially outwards from the piston axis. The end of the piston nearest the plate is reduced in diameter and is fitted with a dust-excluding seal 8.
Patent GB-882501-A (GB)
Title: Couplings between sections of tubular members
Inventor: FISHER WILLIAM THOBY
IPC: F16L23/08
Filed: 1957-11-27
Abstract: 882,501. Tube joints. BRISTOL AEROJET Ltd. Nov. 27, 1958 [Nov. 27, 1957], No. 37016/57. Class 99(1). In a joint between abutting sections 10, 11 of a tubular member, the sections are formed to define an outwardly facing annular recess 13 in the outer surface of the member, and flanges 14 on the ends of the sections project in the recess and are locked together by a ring 16 placed therein. Adjustable retaining means are provided to resist radial displacement of the ring 16 relative to the sections. The sections 10, 11 are formed at their abutting ends with annular portions of thickened section which are cut to form the recess 13. The ring 16 is made of two halves secured together by screw bolts and is housed in the recess 13 so that its outer surface lies flush with the outer surfaces of the sections 10, 11, whilst an annular groove 16a in its inner surface engages the sloped non-abutting sides of the flanges 14. Annular strips 24 of spring steel mounted on the ring 16 are urged axially into engagement with overhanging shoulders 29 on the sections 10, 11 by pairs of coaxial plungers 22 mounted in transverse bores in the ring 16 and acted upon by radial grub screws 23. The shoulders 29 may be provided with radial openings for insertion of a tool to disengage the strips 24 from the shoulders.
Patent GB-1089713-A (GB)
Title: Improvements in or relating to ties and spacers for shuttering for casting concrete
IPC: E04G17/065
Filed: 1965-08-27
Abstract: 1,089,713. Wall shuttering ties. DYNAMIT NOBEL A.G. Aug. 27, 1965 [Aug. 28, 1964], No. 37066/65. Heading E1S. A tie and spacer for two spaced shutters 5 comprises two non-circular head pieces 3 engaging the shutters and connected by two or more parallel rods 1 and having blind bores engaged by screws 8 passing through holes 10 in the shutters and the heads of which engage the outside thereof. The head piece 3 is of synthetic plastics and is cast round the ends of the rods which have ends deformed to provide good adhesion. Each head piece may have an annular surface engaging the shutter. Fig. 1 (not shown) extended by the end surfaces of radial and tangential ribs which also assist in preventing turning of the head piece in the concrete. Projections on the head of the screw 8 prevent turning of the screw. Alternatively each head piece engages a shutter by a disc 29 connected to the head piece by struts deformed when the screw 8 is tightened so that the disc does not penetrate the shutter. Variations of this arrangement are described with reference to Figs. 10 and 11 (not shown). In a further modification each head piece may have a collar engaging the shutter round the hole 10 to prevent entry of concrete.
Patent GB-1016643-A (GB)
Title: Improvements in or relating to presses
IPC: B30B9/26
Filed: 1963-09-20
Abstract: 1,016,643. Fruit presses. BUCHER-GUYER A.G. MASCHINENFABRIK. Sept. 20, 1963 [Sept. 21, 1962; Dec. 10, 1962], No. 37146/63. Heading A4C. In a fruit press comprising a rotatable press cylinder 2 (or 46) having a pressure plate 3 (or 43) and a counter-pressure plate 5 (or 38), flexible draining members 8 (or 59) are stretched between the said plates, each draining member comprising a flexible core 13 a sheath 10 permeable to fruit juice and serving to form draining ducts whereby juice is conducted to a collecting space. In one embodiment (Fig. 1) the counter plate 3 forms a bottom closing one end of the perforated press cylinder 2 and the pressure plate 5 is displaceable by a piston 6 within the cylinder 2. Sheaths 10 are secured on sockets 17 secured to or integral with supporting plates 7 carried by the pressure and counter plates 5, 3 and defining therebetween spaces 16 into which juice passes from the ducts, juice also passing through the perforations 4 in the cylinder 2. The core 13 may be of synthetic material in the form of a strip or of corrugated or star-shaped cross section or may comprise a chain of links and the sheath 10 may comprise a fabric made from synthetic material. In another embodiment (Fig. 12), in which the press space 47 is fluid tight, the draining members 59 are connected between support plates 45 attached to pressure and counter plates 43, 38, the pressure plate 43 being movable within the rotated press cylinder 46 by a piston 40 to compress fruit mash admitted through an inlet 78, fruit juice passing through the draining members 59 into collecting spaces 54 and through outlets 65, 66 to a common outlet 72 into a juice receiver 73, Cam means are provided to permit flow from the outlet 72, which is rotated with the whole assembly, only when it is in the region of the receiver 73. To facilitate removal of de-juiced fruit the press cylinder is movable axially along rods 37 by hydraulic pistons 37, the dejuiced fruit being discharged into a comminutor 82. Cleaning liquid may be admitted through taps 67, 68, 79 in the juice outlet and mash supply lines.